Making your own Fluid Film undercoating system involves careful consideration of safety, equipment, preparation, and application techniques. While emulating the exact commercial formula is impossible without proprietary knowledge, you can achieve significant rust protection and lubrication using readily available materials and methods detailed in this guide, drawing on the collective experience of the Plowsite.com community.
Understanding Fluid Film and Why DIY?
Fluid Film is a popular lanolin-based rust and corrosion inhibitor that provides a long-lasting, self-healing barrier against the elements. It’s prized for its non-drying formula, which creeps into seams and crevices, displacing moisture and preventing rust formation. While commercially available Fluid Film is excellent, many members of Plowsite.com and similar communities seek DIY alternatives for cost savings, greater control over ingredients, and the satisfaction of a job well done.
Benefits of a DIY Approach
- Cost Savings: Purchasing the necessary components in bulk can often be significantly cheaper than buying pre-packaged Fluid Film.
- Customization: Allows you to tailor the formula to specific needs and climate conditions. You might, for example, adjust the viscosity for better cold-weather performance.
- Learning and Understanding: The DIY process provides a deeper understanding of rust prevention and the properties of different materials.
- Self-Sufficiency: Reduces reliance on commercial products and promotes a “do-it-yourself” mindset.
The Importance of Safety
Before embarking on any DIY project involving chemicals and potentially hazardous equipment, it’s crucial to prioritize safety. This includes wearing appropriate personal protective equipment (PPE) such as:
- Eye Protection: Safety glasses or goggles to prevent splashes and sprays from entering your eyes.
- Respiratory Protection: A respirator mask to filter out fumes and aerosols. Consider a respirator rated for organic vapors.
- Skin Protection: Gloves (nitrile or similar) to prevent skin contact with chemicals.
- Protective Clothing: Long sleeves and pants to cover exposed skin.
Always work in a well-ventilated area and be aware of the potential hazards associated with the materials you are using. Consult Material Safety Data Sheets (MSDS) for detailed safety information on each chemical.
Replicating Fluid Film: The Core Components
While the exact recipe for Fluid Film is a closely guarded secret, the basic components are generally understood:
- Lanolin: The primary active ingredient. Derived from sheep’s wool, lanolin is a natural rust inhibitor and lubricant. Anhydrous lanolin is preferred, as it contains less water.
- Mineral Oil: A carrier oil that helps to dissolve the lanolin and improve its spreadability. Look for a food-grade or USP-grade mineral oil for safety.
- Solvent (Optional): A small amount of solvent, such as mineral spirits or odorless paint thinner, can be added to thin the mixture and improve its penetration into tight spaces. Use caution, as solvents can be flammable and emit harmful fumes.
Sourcing Your Materials
Finding high-quality ingredients is essential for creating an effective DIY Fluid Film alternative. Here are some recommended sources:
- Lanolin: Online suppliers specializing in cosmetics ingredients or agricultural supplies. Check for purity and anhydrous content.
- Mineral Oil: Drugstores, pharmacies, or online retailers selling food-grade or USP-grade mineral oil.
- Solvent: Hardware stores or paint supply stores. Opt for odorless mineral spirits or a low-VOC alternative.
Always purchase materials from reputable suppliers and verify their purity before use.
The Mixing Process: Achieving the Right Consistency
The mixing process is crucial for creating a homogeneous and effective undercoating. Here’s a step-by-step guide:
- Heating: Gently warm the lanolin in a double boiler or a heat-safe container placed in a larger pot of hot water. Do not overheat, as this can degrade the lanolin. The goal is to soften it for easier mixing.
- Mixing: Once the lanolin is softened, slowly add the mineral oil while stirring constantly. Use a paint mixer attached to a drill for larger batches.
- Solvent Addition (Optional): If using a solvent, add it gradually while continuing to stir. Start with a small amount and adjust as needed to achieve the desired consistency.
- Consistency Check: The final mixture should have a similar viscosity to commercially available Fluid Film – a thick, oily liquid that easily spreads but doesn’t drip excessively.
Adjusting the Formula for Different Conditions
The ideal ratio of ingredients can vary depending on the climate and specific application.
- Cold Climates: Increase the amount of mineral oil or solvent to reduce the viscosity and improve cold-weather performance.
- Hot Climates: Decrease the amount of mineral oil or solvent to prevent the undercoating from becoming too runny.
- Heavy Salt Exposure: Increase the concentration of lanolin to provide enhanced rust protection.
Application Techniques: Getting the Best Coverage
Proper application is just as important as the formula itself. Here’s a guide to achieving thorough and even coverage:
- Preparation: Thoroughly clean the vehicle’s undercarriage to remove dirt, rust, and loose debris. A pressure washer with a degreaser attachment can be helpful. Allow the undercarriage to dry completely.
- Masking: Cover sensitive components such as exhaust systems, brake lines, and electrical connections with masking tape or plastic sheeting.
- Application: Use a garden sprayer, undercoating gun, or even a paintbrush to apply the DIY Fluid Film to the undercarriage. Focus on areas prone to rust, such as seams, welds, and joints.
- Crevice Penetration: Use a wand or nozzle to reach into tight spaces and crevices. Ensure that all surfaces are coated evenly.
- Post-Application: Allow the undercoating to sit for a few hours before driving the vehicle. This will allow it to creep into seams and crevices and fully adhere to the metal.
Recommended Equipment
- Pressure Washer: For cleaning the undercarriage.
- Degreaser: To remove grease and oil.
- Masking Tape and Plastic Sheeting: For protecting sensitive components.
- Garden Sprayer or Undercoating Gun: For applying the undercoating.
- Paint Mixer: For mixing large batches.
- Respirator Mask: For respiratory protection.
FAQs: Your DIY Fluid Film Questions Answered
Here are some frequently asked questions about making and using DIY Fluid Film undercoating, based on discussions and experiences shared on Plowsite.com.
FAQ 1: Can I use used motor oil as a substitute for mineral oil?
No. Used motor oil contains contaminants that can actually accelerate rust and corrosion. It’s also environmentally irresponsible and potentially illegal to use in this manner. Stick to food-grade or USP-grade mineral oil.
FAQ 2: How often should I reapply the DIY Fluid Film undercoating?
This depends on your climate and driving conditions. In areas with heavy salt exposure, reapplication every year is recommended. In milder climates, every two to three years may suffice.
FAQ 3: Will DIY Fluid Film damage rubber or plastic components?
Lanolin is generally safe for rubber and plastic, but some solvents can cause damage. If you’re concerned, test a small area first. Avoid spraying directly onto rubber hoses or electrical wiring.
FAQ 4: What is the best way to clean up spills?
Use a degreaser or mineral spirits to remove spills. Wipe up excess liquid with rags.
FAQ 5: Can I add pigments or dyes to the DIY Fluid Film?
Yes, you can add pigments or dyes to color the undercoating for better visibility and to track coverage. Use oil-based pigments designed for paints and coatings.
FAQ 6: How does DIY Fluid Film compare to commercially available Fluid Film in terms of performance?
While DIY Fluid Film can provide significant rust protection, it may not match the exact performance of commercially available Fluid Film due to proprietary ingredients and manufacturing processes. However, many users report excellent results with DIY alternatives.
FAQ 7: What is the best way to store unused DIY Fluid Film?
Store unused DIY Fluid Film in an airtight container in a cool, dry place. Avoid direct sunlight and extreme temperatures.
FAQ 8: Is it safe to spray DIY Fluid Film on my exhaust system?
No. Avoid spraying DIY Fluid Film on your exhaust system, as it can ignite and cause a fire. Mask off the exhaust system before application.
FAQ 9: Can I use DIY Fluid Film on other metal surfaces, such as lawnmowers or snowblowers?
Yes, DIY Fluid Film can be used on any metal surface that is prone to rust and corrosion.
FAQ 10: What is the approximate cost savings of making my own Fluid Film compared to buying it?
The cost savings can vary depending on the quantity of materials purchased and the supplier. However, many users report saving 30-50% by making their own Fluid Film.
FAQ 11: How do I know if I am using too much solvent?
If the mixture is too thin and runny, you have likely used too much solvent. Add more lanolin and mineral oil to thicken the mixture.
FAQ 12: What are the potential downsides of using a DIY Fluid Film undercoating?
The primary downside is the potential for inconsistency in the mixture and the possibility of not achieving the same level of performance as commercially available products. Careful attention to detail and proper preparation are crucial for success.
Conclusion: Protecting Your Vehicle with DIY Fluid Film
Creating your own Fluid Film undercoating can be a rewarding and cost-effective way to protect your vehicle from rust and corrosion. By following the guidelines outlined in this article and prioritizing safety, you can achieve professional-quality results and extend the life of your investment. Remember to consult the wealth of knowledge available on Plowsite.com and other online forums for additional tips and advice from experienced DIYers. Good luck and happy undercoating!